Module:Sandbox/User:Californ1a/PriceChecker

Documentation for this module may be created at Module:Sandbox/User:Californ1a/PriceChecker/doc

local p = {}

-- Utility function to clean up number strings by removing commas
local function cleanNumberString(value)
    if type(value) == 'string' then
    	if value == 'N/A' then
    		return -1
    	end
        return value:gsub(',', '')
    end
    return value
end

-- Non-dynamic module, no inputs
function p.main()
    -- Returns only directly needed parameters for the row,
    -- other parameters are determined by subqueries of chained pages
    local query = {
        '[[-Sold item::~*]]',
        '?=Name',
        '?-Sold item.Shop sell price=ShopValue',
        '?Value=InfoboxValue',
        'limit = 10000',
        'order = asc'
    }

    local results = mw.smw.ask(query)

    local out = {}
    for _, item in ipairs(results) do
        local shopValues = item.ShopValue -- Could be an array or a single value
        if shopValues ~= nil then
	        if type(shopValues) == "string" then
	            shopValues = { shopValues } -- Normalize to a table for consistency
	        end
	
			local infoboxValue = item.InfoboxValue
			if string.find(infoboxValue or '', '%S') then
				infoboxValue = tonumber(cleanNumberString(infoboxValue))
			else
				infoboxValue = -2
			end
	        local hasMatch = false
	        
	        for _, shopValue in ipairs(shopValues) do
                -- Compare numeric values
                local cleanShopValue = cleanNumberString(shopValue)
                local numericShopValue = tonumber(cleanShopValue)
                if numericShopValue == infoboxValue then
                	hasMatch = true
                end
	        end
	
	        -- Add the item to the output if any shopValue mismatched InfoboxValue
	        if not hasMatch then
	            table.insert(out, item)
	        end
	    end
    end

    -- Format the output to display each item's details
    local output = {}
    for _, item in ipairs(out) do
        table.insert(output, mw.text.jsonEncode(item)) -- Convert each item to a JSON string for display
    end

    return table.concat(output, '<br>') -- Concatenate the JSON representations with a line break
end

return p